Title :
Design and realization of a portable data logger for physiological sensing [GSR]
Author :
Luharuka, Rajesh ; Gao, Robert X. ; Krishnamurty, Sundar
Author_Institution :
Dept. of Mech. & Ind. Eng., Univ. of Massachusetts, Amherst, MA, USA
Abstract :
A microcontroller-based data logger has been designed, prototyped, and field-tested for recording galvanic skin response data and relaying them to a computer for physiological analysis. Focusing on system design issues concerning battery-driven ambulatory applications, this paper presents a special data compression algorithm based on relative encoding to optimize memory utilization and reduce data transfer time. Data flow coordination and timing control are enabled by a PIC microcontroller. A handheld prototype measuring 180×90×30 mm was built and tested for ease of use, safety, and reliability.
Keywords :
biomedical measurement; computerised monitoring; data acquisition; data compression; data loggers; microcontrollers; network synthesis; 180 mm; 30 mm; 90 mm; GSR data recording; PIC microcontroller; autism; battery-driven ambulatory applications; data acquisition; data compression; data flow coordination; data transfer time; galvanic skin response data recording; memory utilization optimization; microcontroller-based data logger; physiological analysis; physiological sensing; portable data logger; relative encoding; timing control; Application software; Data compression; Design optimization; Encoding; Galvanizing; Prototypes; Relays; Skin; System analysis and design; Timing;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2003.816808
